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Cagliari

$868+ Cheap flights from St. Louis (STL) to Cagliari (CAG)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CAG
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from St. Louis to Cagliari

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Cagliari (CAG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 18, 2025.

Round-trip from

$868
(lol.travel)
From Lambert-St Louis to Cagliari Elmas
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Find flight deals from St. Louis to Cagliari

Cheapest flights from St. Louis to Cagliari
Explore the most affordable flight options available from St. Louis to Cagliari. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This lol.travel deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/311:27 amSTL - CAG
2 stops38h 43mMultiple Airlines
Sun 9/77:25 pmCAG - STL
2 stops51h 19mMultiple Airlines
Deal found 8/18$868
This Orbitz deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/164:05 pmSTL - CAG
2 stops32h 35mMultiple Airlines
Tue 9/238:55 amCAG - STL
2 stops18h 02mMultiple Airlines
Deal found 8/17$970
This Trip.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/53:50 pmSTL - CAG
2 stops18h 30mMultiple Airlines
Wed 11/129:00 amCAG - STL
2 stops21h 44mMultiple Airlines
Deal found 8/17$1,119
This lol.travel deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/33:30 pmSTL - CAG
1 stop20h 05mLufthansa
Sun 9/77:25 pmCAG - STL
2 stops51h 19mLufthansa
Deal found 8/18$1,330
This Iberia deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/49:25 amSTL - CAG
2 stops44h 10mIberia
Mon 12/81:20 pmCAG - STL
2 stops26h 23mIberia
Deal found 8/16$1,533

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Cagliari that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from St. Louis to Cagliari that are best for you.

Fly from

St. Louis

Fly to

Cagliari

Route

Depart

Return

Price

St. LouisCagliari

STL - CAG

STLCAG

Lambert-St Louis

Wed 9/3

11:27 am-9:10 am

2 stops38h 43m

Cagliari Elmas

Sun 9/7

7:25 pm-3:44 pm

2 stops51h 19m

$868

St. LouisCagliari

STL - CAG

STLCAG

Lambert-St Louis

Tue 9/16

4:05 pm-7:40 am

2 stops32h 35m

Cagliari Elmas

Tue 9/23

8:55 am-7:57 pm

2 stops18h 02m

$970

St. LouisCagliari

STL - CAG

STLCAG

Lambert-St Louis

Wed 11/5

3:50 pm-5:20 pm

2 stops18h 30m

Cagliari Elmas

Wed 11/12

9:00 am-11:44 pm

2 stops21h 44m

$1,119

St. LouisCagliari

STL - CAG

STLCAG

Lambert-St Louis

Wed 9/3

3:30 pm-6:35 pm

1 stop20h 05m

Cagliari Elmas

Sun 9/7

7:25 pm-3:44 pm

2 stops51h 19m

$1,330

St. LouisCagliari

STL - CAG

STLCAG

Lambert-St Louis

Thu 12/4

9:25 am-12:35 pm

2 stops44h 10m

Cagliari Elmas

Mon 12/8

1:20 pm-8:43 am

2 stops26h 23m

$1,533

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Best time to book a flight from St. Louis to Cagliari

Have a flexible travel schedule? Discover the best time to fly to Cagliari from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Cagliari. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from St. Louis to Cagliari?

    Departing from St. Louis to Cagliari will take you 20h 05m. The distance from St. Louis to Cagliari is about 5021 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from St. Louis to Cagliari that include hotel bookings?

    Yes. In addition to deals on St. Louis to Cagliari flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Cagliari?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Cagliari.

  • Can I find deals for business class flights from St. Louis to Cagliari?

    Yes. Cheapflights offers flight deals from St. Louis to Cagliari by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Cagliari?

Book flights to Cagliari if you plan to visit one of these locations
Oristano

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